| タイトル | Studies of solid propellant combustion with pulsed radiography |
| 著者（英） | Fujiwara, T.; Tanemura, T.; Shimizu, M.; Godai, T. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1987-08-01 |
| 言語 | eng |
| 内容記述 | Pulsed radiography was applied to observe solid propellant surface regression during rocket motor operation. Using a 150 KV flash X-ray system manufactured by the Field Emission Corporation and two kinds of film suppliers, images of the propellant surface of a 5 cm diameter end burning rocket motor were recorded on film. The repetition frame rate of 8 pulses per second and the pulse train length of 10 pulses are limited by the capability of the power supply and the heat build up within the X-ray tube, respectively. The experiment demonstrated the effectiveness of pulsed radiography for observing solid propellant surface regression. Measuring the position of burning surface images on film with a microdensitometer, quasi-instantaneous burning rate as a function of pressure and the variation of characteristic velocity with pressure and gas stay time were obtained. Other research items to which pulsed radiography can be applied are also suggested. |
| NASA分類 | PROPELLANTS AND FUELS |
| レポートNO | 87N27059
NASA-TT-20081
NAS 1.77:20081 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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